Revelation 5

 Then I saw a strong angel proclaiming with a loud voice, “Who is worthy to open the scroll and to loose its seals?”  And no one in heaven or on the earth or under the earth was able to open the scroll, or to look at it. vv.2-3

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This chapter goes on now to talk about the scroll with the seven seals that we will read about as they are unleashed as each seal is a curse.  But first one worthy must open the scroll.  Yet there is no one worthy, not man nor celestial being.  Even this one described as a strong angel asking the question shows that he knows he is not even worthy.   The only one worthy we realize is Jesus who is the lamb in the midst of the throne (v.6) and who all the elders and creatures fall down to and sing in verse nine to Him, "You are worthy to take the scroll, And to open its seals; For You were slain, And have redeemed us to God by Your blood Out of every tribe and tongue and people and nation."
Now another interesting thing to notice here is that it mentions three dimensions: in heaven, on the earth, under the earth.  This seems to just show that no angles, nor celestial beings, nor men living nor men dead is worthy.  It's easy for us to compare ourselves and think "good" people are worthy of such a honorable task or even assume angels are perfect and better than humans, but no one is good or worthy of anything except God, not even Captain America.